Installing device for paving joints



Patented July 14, 1931 UNITED STATES PATENT OFFICE ALBERT C. FISCHER, OF CHICAGO, ILLINOIS, ASSIGNOR IO THE PHILIPCAREY MANU- FACTURING COMPANY, A CORPORATION OF OHIO V INSTALLING DEVICE FOR PAVING JOINTS Application filed January 24, 1927. Serial No. 163,054.

In installing various types of paving joints it becomes necessary in order to install the joints in a straight line and prevent the same from floating when concrete is poured to use an installing device, which will assume control of the joint until after the concrete has been poured on its opposite side.

Some types of joint are so flexible that they cannot be supported on edge, others while stiff enough to stand on edge have a tendency to lean to one side or the other so that Without an installing device they are not installed in a true perpendicular plane.

The object of my invention is to provide an installing device which will effect proper installation of the joint, regardless of the form of the joint, and while I have shown the installing device in combination with one particular type of joint it does not necessarily follow that its limitations are confined to this particular combination.

In the accompanying drawings Figure 1 is a perspective view of a portion of the form of expansion joint which may be used in com- 2 bination with the device;

Figure 2 is a perspective view of a portion of the tongue and groove reinforcing form for that type of joint illustrated in Figure 1;

Figure 2 is another view of the part shown in Figure 2, but without the dowel openings;

.and

Figure 3 is a perspective view illustrating my improved installing device as used in combination with that type of oint shown in Figure 1.

Referring now to the drawings in detail. I will, however, first call attention to the fact that this particular type of joint corresponds to that type of construction illustrated in my co-pending application filed as of even date, Serial No. 163,053 and which issued J an.. 14, 1930 as Patent No. 1,7 43,7 66.

In the accompanying drawings 5 and 6 represent the upper and lower flat portions of the joint, which are connected by an intermediate longitudinally extending tongue and groove portions 7 and 8. In some forms the tongue and groove portions are provided with openings 9 for the reception of transverse reinforcing dowels.

In making up the joint I would ordinarily take a strip of sheet material, preferably roofing felt and place a trough shaped reinforcing form 10 longitudinally along the sheet, and thus force the material of the sheet covered by the trough 10 into the concave side of the trough and use a suitable adhesive for mounting the trough to the sheet. This will leave the material of the sheet corresponding to the trough 10 or conforming to the shape of the trough so as to develop the tongue and groove structure 7 and 8.

In Figure 2 the trough 10 is shown Without the openings 9 for the dowels. Using this type of joint as an illustration I will now proceed to describe the construction of my installing device, which for the most part preferablycomprises a backing board 11-, which is adapted to lie flush against one side of'the joint, and in the case of a tongue andgroove installation the board will lie against the grooved side of the strip.

Mounted to the upper edge of the backing board 11 and extending transversely thereof, or rather spaced for the edge of the backing board for a distance sufficient to receive the thickness of the joint to be installed, is a retaining device 12, which, according to the present form, comprises an angle iron with hinges 13 connecting the same to the board. At spaced intervals in the length of the angle iron 12 are impaling means, such as spurs or the like 14, which are to be imbedded in the upper edge of the joint strip so as to suspend the strip without relying entirely upon frictional or wedging contact of the angle iron 12. Secured as at 15 to the angle iron, intermediate the ends thereof, is i a stake 16, which is made with a pointed end 17 to be driven into the ground so as to sup? port the structure in perpendicular alignment. The stake projects downwardly between the joint strip and the backing board, it being deformed from the plane angle bar face sufliciently to accommodate the thickness of the joint strip.

Assuming that the assembly is set up as illustrated in Figure 3 the concrete would first be poured against the open side of the joint, i. e. to say the side opposite the backing board 11, and when poured the board 11 will be swung up andremoved to expose the opposite surface of the joint, whereupon the concrete will be poured around the same. The stake 16, or rather the stakes 16 as there would ordinarily be more than one stake on a relatively long installing device, would be sufficient to hold the strip against the poured side of the installation until the concrete had been poured around the opposite side.

With this type ofinstalling device I can provide a backing board which for all practical purposes will lie flush against one side of the joint, and with means engaging the crown of the joint strip for holding the strip against the backing board and at the same time leaving one side of the joint strip exposed so that the'concrete may be poured against the same. a

' I claim:

1. In an installing device for preformed paving joints, a backing member adapted to lie against one side of the joint, means including a member hinged to the backing member for holding the joint against the backing member, and staking means extending from the hinged member toproject between the backing member and joint.

2.; In an installing device for preformed paving joints, a backing board against which the paving joint is adapted to lie, means hingedly mounted at the upper edge of the backing board having a clamping surface adapted to lie in a plane substantially parallel with the backing boa-rd surface and spaced therefrom to engage one edge of a,

paving oint, and means extending from one of the members for supporting the paving j oint therein with one of its faces completely exposed below the clamping surface of the hinged means.

3. In an installing device for preformed paving joints, a backing member adapted to lie against one side of the joint, a bar hinged to the backing member for holding the joint. and staking means projecting between said backing member and bar.

4. In an in-stalling device for preformed paving joint, a backing member adapted to lie against one side of the joint, a bar hinged to the backing member for clamping the joint, and staking means attached to the bar andp-rojecting between said bar and backing member.

Signed at Chicago, Illinois this 13th day of January 1927.

ALBERT C. FISCHER. 

